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2012210001012 = 2231611591040489
BaseRepresentation
bin11101010010000001000…
…011111111010001110100
321010100212101010011112210
4131102001003333101310
5230432001230013022
64140221351413420
7265243303541451
oct35220103772164
97110771104483
102012210001012
117064120a6312
12285b91084270
1311799b075343
146d56a334828
153751edd0a0c
hex1d4810ff474

2012210001012 has 24 divisors (see below), whose sum is σ = 4695190315200. Its totient is φ = 670731860416.

The previous prime is 2012210001007. The next prime is 2012210001019. The reversal of 2012210001012 is 2101000122102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012210001019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413664 + ... + 2454152.

It is an arithmetic number, because the mean of its divisors is an integer number (195632929800).

Almost surely, 22012210001012 is an apocalyptic number.

It is an amenable number.

2012210001012 is an abundant number, since it is smaller than the sum of its proper divisors (2682980314188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012210001012 is a wasteful number, since it uses less digits than its factorization.

2012210001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201655 (or 1201653 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2012210001012 its reverse (2101000122102), we get a palindrome (4113210123114).

The spelling of 2012210001012 in words is "two trillion, twelve billion, two hundred ten million, one thousand, twelve".

Divisors: 1 2 3 4 6 12 161159 322318 483477 644636 966954 1040489 1933908 2080978 3121467 4161956 6242934 12485868 167684166751 335368333502 503052500253 670736667004 1006105000506 2012210001012